My daughter has had a large increase in weight in her abdomen and face the past year (around 20 lbs.)

I had her TSH and Free T3 tested, but was told the levels were normal by the nurse. I am by no means an expert nor have much experience with this type of testing, but searching this board and on the net her levels of TSH seem quite high, not so sure about the Ft3...

TSH= 8.9
Ft3= 2.3

I have seen so many different "normal" ranges for children I am not sure what to believe and not believe. Please give me some advice about her levels, and what are the norms for a girl her age (7.6). I personally do not have thyroid issues but her maternal grandmother has been treated for Hypo for many, many years (not sure if it is hereditary?).

Thank you for any answers you provide me. My daughter has a follow-up appointment this coming Monday (8/25) regarding the weight issues, but I would like to go armed with answers about her thyroid levels.